websioux/cloudflaredyndns

Runing Linux locally ? You have a dynamic IP but you would like to have an static address for the outisde world ? If you have a domain name, and you handle its DNS with CloudFlare, this cronjob will take care to update one of your subdomains with your local public IP when it detects this IP has changed

Requirements.

• Local Linux machine, with CURL & PHP5+
• A domain name whose DNS are managed by Cloudflare.com

Instructions.

1. Get your public IP click here for instance
2. Setup a subdomain with Cloudflare DNS pointing to this IP (create a A record for this subdomain on your domain zone)
3. Clone the repo into your local machine
4. Open dummy-config.php, modify with your data, and save it into private-config.php
5. Set up a crontab */5 * * * /PATH_TO/cronjob.php

How it works

Every 5 minutes the script queries ipinfo.io/ip (or an address of yours if you want copy the file ip.php to your site location) and compares it with the content of the file "myIp", if it changed, it updates the clouflare DNS for the subdomain and replace the value in "myIp". The file "myIp" is created at the first run.